baber/WOPTO huggingface dataset:
Patent GB-776695-A (GB)
Title: Two-speed coaster brake
IPC: B62L5/08
Filed: 1955-04-25
Abstract: 776,695. Control lever mechanism for cycles. BENDIX AVIATION CORPORATION. April 25, 1955 [May 3, 1954], No. 11899/55. Class 136(1). In a shifting device for a two-speed bicycle gearing comprising a bracket 1 adapted to be clamped to a support and an operating handle 4 pivotally and slidably mounted on the bracket and having connected to it a cable 12 entering the bracket, a link 8 is pivoted at 11 to the bracket 1 and at 9 to an intermediate point of the handle 4. The cable 12 is attached to the handle 4 by means of a gudgeon 5 which is rotatably mounted in aligned bearing openings 6 in the handlebar and also bears slidably in registering slots 7 in the sides of the bracket. The length of the link 8 and the position of its pivot bearings 9, 11 are so chosen that when the handle 4 is raised by the operator, the gudgeon 5 is drawn to the left, Fig. 1, to the end of the slot 7 when the link 8 has been swung just past its dead centre position. The handle 4 is held in this position by the pivot 5 until released by pressure on a thumb rest 33. The end of the cable 12 remote from the handle is anchored to a gear shift lever 19 by means of a tubular coupling member 21 which is threaded to receive a threaded stud 23 which is pivoted at 24 to the lever 19. A thrust ring 27 is yieldably pressed by a spring 28 against a hollow nipple 29 which is threaded in the tube 21 and slidably receives an anchor member 26 to which the cable 12 is fixed. The tension of the cable 12 may be adjusted by screwing the nipple 29 towards or away from the anchored end of the cable. A spring 32 holds the gearing in the lowspeed position. When the operator draws the handle 4 upwards through the dead-centre position the cable 12 swings the lever 19 to move the gearing into its high speed position where it is maintained by the handle 4 which is held in its upper position by the tension of the cable 12. To shift to low gear the operator presses on the thumb rest 33. In a modification shown in Fig. 3, the gudgeon 5 does not extend through the sides of the bracket 1<SP>1</SP> but a guiding function equivalent to that of the slots 7 is performed by a bottom wall 30 on the bracket 1<SP>1</SP> on which a projecting portion 31 of the handle 4<SP>1</SP> has slidable bearing. The wall 30 is parallel to the cable 12<SP>1</SP> where it enters the bracket 1<SP>1</SP> so the end of the cable is caused to have a rectilinear movement as the handle is raised and lowered.
Patent GB-453343-A (GB)
Title: Improvements in or relating to the supercharging of a firebox by means of centrifugal turbo-blowers actuated by gases of combustion
IPC: F22B1/24
Filed: 1936-04-27
Abstract: 453,343. Generating combustion products under pressure. SOC. RATEAU, 40, Rue du Colisee, Paris. April 27, 1936, No. 11952. Convention date, April 29, 1935. [Class 51 (i)] Compressed air is supplied to a firebox by two or more turbo - blower units, the blowers being traversed in series by the air to be compressed and driven by turbines supplied in parallel by gases from the firebox. As shown, a water tube boiler 7 heated by burners 6 is fitted with gas turbines 10, 11 arranged in parallel and blowers 2 driven by the turbines. Air from a conduit 1 enters the blower 2 and then passes through the conduit 3 to the blower 4 and conduit 5 to the furnace. One or more of the turbo-blower units may be assisted by an auxiliary motor 13.
Patent GB-910877-A (GB)
Title: Process of curing ethylene/alpha-olefin copolymers and product thereof
Inventor: MAKOWSKI HENRY STANISLAUS
IPC: C08K5/3492
Filed: 1961-04-04
Abstract: A rubbery copolymer of ethylene and a C3 to C5 a -olefin or a mixture of said copolymers, is cured by treating at 250 DEG  to 350 DEG F. with a trihalomelamine, preferably in conjunction with a zinc or cadmium carbonate, oxide, sulphide, nitrate, phosphate, sulphate or organic acid salt such as stearate.  The preferred materials are ethylene/propylene copolymer, trichloromelamine and zinc compounds. Optional ingredients are carbon black, stearic acid and calcium carbonate.  The copolymer is thought to be halogenated by the trihalomelamine and the cross-linking then effected by the halogen on the polymer and the amine groups on the trihalomelamine. Specification 810,023 is referred to.
Patent GB-591614-A (GB)
Title: Improvements relating to the production of permeable solid bodies
Filed: 1945-05-14
Abstract: 591,614. Porous compositions. GAS LIGHT & COKE CO., and MacCORMAC, M. May 14, 1945, No. 12096. [Class 70] Permeable bodies are produced by building up particles, preferably in the form of nodules, from finely powdered clay, baking the particles to destroy the colloidal properties, binding the particles together with a further quantity of the finely-powdered clay, moulding the mass and firing. The finely-powdered clay, or fireclay if a refractory body is required, may be placed in a drum 1 arranged to rotate on its axis which is inclined to the horizontal, rotation being at such a speed that the charge rolls over instead of sliding. A fine spray of water is directed into the drum, and the nodules are discharged into a rotating screen 24, 25. Nodules of about 0.05 inch in diameter are collected, compacted by rolling in a second drum, and baked at approximately 600‹C. for half-an-hour. After grading and freeing from dust, the nodules are returned to the drum 1, sprayed with sufficient water to wet them but not to cause them to stick together, and sprinkled with a further amount of finelydivided clay, the mass being then brought to a casting consistency by the addition of further water, cast, dried, and fired slowly to a temperature of 1450‹C. A smooth finish may be given by sprinkling graded clay on to the exposed faces after moulding but before drying, or by grinding.
Patent GB-1501015-A (GB)
Title: Semiconductive heterojunction devices
IPC: H01L31/074
Filed: 1975-03-25
Abstract: 1501015 Semi-conductor devices INNOTECH CORP 25 March 1975 [27 March 1974 (2)] 12305/75 Heading H1K A heterojunetion is formed between a pair of semi-conductor materials, one of which has an energy band gap more than twice that of the other, the electron affinity of the wider bandgap material (i.e. the energy required to raise an electron from the bottom of the conduction band to free space potential) being substantially equal to or less than that of the narrower bandgap material. The invention is particularly applicable to PN-junction solar cells, in which the large disparity in band-gap provides high collective efficiency and a high built-in voltage, and the electron affinity condition ensures the absence of undesirable impedance associated with irregularities across the junction at the edge of the conduction or valence band (depending on conductivity type). In the preferred embodiments the narrower band-gap semiconductor is a conventional material such as Si, Ge, Si x Ge 1-x , GaAs, GaP or SiC while the wider band-gap material is a glassy amorphous material. Examples of materials suitable for the wider band-gap side of the junction are InO 3 , SnO 2 , CdO, Sb 2 O 3 , PbO, V 2 O 5 , GeO 2 , variogermanate glasses, variophosphate glasses, lead silicate glasses and glassy mixtures of these materials. Various specific combinations are disclosed, including N-type Si with the following glass composition (mole percentages): and GaP with the following P-type glass composition (mole percentages): Suitable electrode materials and configurations are described.
Patent GB-988031-A (GB)
Title: Electro-optical one-shot circuit
IPC: H05B33/26
Filed: 1963-03-28
Abstract: 988,031. Circuits incorporating radiation links. NATIONAL CASH REGISTER CO. March 28, 1963 [May 18, 1962], No.12335/63. Heading G1A. [Also in Division H3] A monostable circuit is formed using photoconductive elements viewing electro-luminescent elements. The output pulse length may be made adjustable and the triggering pulse may be either longer or shorter than the output pulse. In the embodiment of Fig. 1 the electro-luminescent elements are indicated by EL with a numeral and the photoconductive elements by PC and the numeral of the electro-luminescent element whose light may fall on it. Where light from one source falls on more than one detector suffix numerals are used to distinguish the latter. In the stable condition EL1 is on and holds itself on by illuminating PC1.1. It also illuminates PC1. 2 and PC1. 3 to energize EL2 and reduce the resistance of PC2. An input pulse at 2 lights EL3 providing a low resistance path to light EL4 which holds on by illuminating PC4. 2 and PC4. 3 and commences the output pulse by shining on PC4.1. EL1 is shorted out, PC1. 2 reaches a high resistance almost immediately but PC1. 3 which is deliberately made to have a slow response turns off only after a predetermined time to turn off EL2 and to turn on EL5 which is chosen to light with the voltage thus applied. EL5 illuminates PC5. 2 to short out EL4 and terminate the output pulse. If the input pulse has ended the circuit is returned to its initial state. If the input pulse continues, EL5 and EL6 are lit until it terminates and the circuit then returns to its initial condition. Variation in the output pulse length can be achieved by a variation in the resistance R1 in series with PC1. 3 and/or by varying an optical attenuator 4 between EL1 and PC1. 3 A circuit in which no electro-luminescent element is connected to more than two photo-conductive elements, stated to allow for a greater variation in the output pulse length, is described with reference to Figs. 3 and 4 (not shown). The Specification defines electro-luminescent elements as including neon and filament lamps as well as suitable phosphors. There is also a wide definition of photo-conductive elements.
Patent GB-346579-A (GB)
Title: A new and improved method of heating rooms; also of stopping "window steaming" in shops
IPC: F24B1/188
Filed: 1930-04-22
Abstract: 346,579. Ventilating and heating apparatus. WADDINGTON, E., 7, Bede Grove, West Hartlepool, Durham. April 22, 1930, No. 12368. [Class 137.] An air box B arranged under and around an open firegrate is fed with fresh air from an inlet A at the back and is joined at about the firegrate level with a conduit c extending at about floor level to an aperture in the skirting board on the opposite side of the room. An additional conduit for supplying hot air to the upper rooms is joined to the top of the air box at E and comes into action when the door of the lower room is open. Window steaming may be prevented by arranging the skirting board aperture beneath the window.
Patent GB-605858-A (GB)
Title: Improvements in or relating to filling machines
IPC: B65B39/02
Filed: 1940-09-06
Abstract: 605,858. Packeting. RAYMER, M. M. Sept. 6, 1940, No. 12398/42. Convention date, March 6, 1940. Divided out of 605,855. [Class 94(i)] Relates to a machine, such as that described in Specification 605,855, for filling fluent material into packets each of which is composed of a cardboard carton with a paper lining. During the filling operation, the corners of the lining at the mouth are engaged and spread by fingers 271. According to the present invention, additional fingers 285 are provided to engage the sides of the lining to prevent them from bowing inwards. Specification 605,857 also is referred to.
Patent GB-220072-A (GB)
Title: Improvements in or relating to means or appliances for protecting the ends of rolls of linoleum, oilcloth and the like from damage
IPC: B65D59/06
Filed: 1923-05-10
Abstract: 220,072. Carr, J. May 10, 1923. Rolls of fabric.-The ends of rolls of linoleum or like material are protected by a device comprising a cylindrical member 2 and disc 1 means being provided to secure the device to the roll 9. The disc 1 may be attached to the member 2 or be detachable therefrom. The member 2 may have a slit 7 so that it can grip the roll when string is tied round it. The member 2 may have a flanged portion to retain a detachable disc 1 and have tongued and slotted parts to enable it to be applied to various sizes of rolls, the device being secured by passing the tongues through the slots and bending them back on themselves. The device is made of ply wood, cardboard, strawboard, metal, or wicker work, or of a combination of two or more of these materials. The first Provisional Specification describes discs used in combination with larger pieces of canvas, paper, &c. which may pass over the ends of the roll and be tied with string; protectors formed with openings so that material may be removed from the roll without removing the protectors; and protectors secured to the roll by being enclosed in covering paper. The second Provisional Specification describes protectors made of tin, brass, and papier mÔchÚ; and flanges cut at suitable intervals to adapt the protectors to rolls of different diameters.
Patent GB-284123-A (GB)
Title: Improved method of packing corrugated sheets in crates
IPC: B65D85/67
Filed: 1927-05-10
Abstract: 284,123. Bell's Poilite & Everite Co., Ltd., and Cann, J. A. May 10, 1927. Fittings, internal; boxes of skeleton formation; battens, strengthening.-Sheets of permanently corrugated materials are packed in a crate comprising battens a, b, constituting the sides and ends, spaced transoms d constituting the top and bottom, and longitudinal bars f, f<1> secured to the top and bottom. transoms and so shaped that they engage the corrugations of the nested sheets g and prevent the material from moving laterally while the edges of the sheets are held out of contact with the sides. Endwise movement is prevented by short battens faced with felt or other soft resilient material secured to the inner faces of the ends b. Strengthening-pieces may be attached at the corners of the crate.
Patent GB-116974-A (GB)
Title: Improvements in or relating to Furnace Rakes for Mechanical Roasting Furnaces and the like.
Inventor: BRAND ERNST ELIAS
IPC: F27B9/14
Filed: 1917-09-01
Abstract: 116,974. Brand, E. E. Sept. 1, 1917. Charges, agitating.-Stirring devices for mechanical ruasting- furnaces with radial arms extending from a central vertical shaft are inserted in longitudinal grooves in the arms and constructed so that they slope to form an obtuse angle with the furnace bottom towards the front, and are inclined also to the axes of the arm as shown. The blade a may be plane, as shown, bent, or curved. The head b fits into the groove in the arm.
Patent GB-792395-A (GB)
Title: Process for alkylating paraffin hydrocarbons
IPC: C07C2/62
Filed: 1956-04-25
Abstract: Paraffin hydrocarbons, including naphthenes, are alkylated with olefines in the presence of a mixture of substantially anhydrous hydrogen fluoride and a preformed complex of boron trifluoride and a fluoride of an iron-group metal, particularly in the divalent state. Mono- or poly-, open or closed chain, gaseous or liquid, olefines can be used to alkylate straight- or branched-chain or cyclic paraffins, the molar ratio of paraffin to olefine preferably being between 2 and 20:1.  Temperatures of -60 DEG  to 100 DEG  C. may be used in combination with pressures of 1-100 atmospheres; since the complex used in the catalyst may decompose above 50 DEG  C. at normal pressures, the pressure at high temperatures should be sufficient to prevent loss of boron trifluoride.  The reactants are preferably maintained in the liquid phase.  Batch or continuous operations can be used.  The complex is formed by contacting the two components preferably in the presence of hydrogen fluoride.  The metal fluoride can be formed in situ by reaction of the metal and hydrogen fluoride. The complex may be used alone or supported on activated charcoal, or a fluoride of aluminium, calcium, magnesium, strontium or barium. The catalyst may comprise a solution or slurry of the complex in hydrogen fluoride or as a solid mass and hydrogen fluoride introduced as a liquid or gas, continuously or intermittently with the reactants, the molar ratio of hydrogen fluoride to complex being in the range 0.01 to 200:1.  In a typical example, iron is heated with anhydrous hydrogen fluoride and then with boron trifluoride and the resulting ferrous fluoride-boron trifluoride complex used with hydrogen fluoride to react isobutane with ethylene in an autoclave at 35 DEG  C.
Patent GB-493030-A (GB)
Title: Improvements relating to yeast and yeast containing substances and comestibles made therefrom
IPC: C12N1/04
Filed: 1938-04-28
Abstract: A fatty acid derivative of a polyhydric alcohol is incorporated with yeast at any stage in its manufacture, or with dough or similar materials.  The fatty acid may be lauric, palmitic, stearic or oleic acid and the polyhydric alcohol may be diethylene, triethylene or dipropylene glycol, or mannitol, erythritol or sorbitol, preferred derivatives being those from lauric acid and sorbitol.  The proportion of the latter may range from 0,12 to 1 per cent with yeast or 0,12 to 0,25 per cent with dough.  Simple lauric acid esters may be used as additional ingredients.
Patent GB-677191-A (GB)
Title: Telegraph transmitter
IPC: H04L17/06
Filed: 1950-05-23
Abstract: 677,191. Retractive switches. TELETYPE CORPORATION. May 23, 1950. [May 28, 1949] No. 12883/50. Class 38 (v). [Also in Group XL (b)] 1 A contact - operating device to prevent bouncing ur chattering at the operated contacts comprises a contact operating rod 112 pivotally secured by a member 185 to a T- piece 186 carrying contacts 187 associated with fixed contacts 188. The contact 187 is held against its operated contact 188 by a bridge member 192 biased by a spring 195 and engaging V-shaped recesses 191, 193 in the T-lever and bracket 194 respectively. When the bar 185 is moved upwardly the T-member moves to close the opposite contacts 187, 188, and subsequently fulcrums on these contacts in a manner similar tu that described in Specification 662,428.
Patent GB-1507893-A (GB)
Title: Presser foot for sewing machines
IPC: D05B29/08
Filed: 1975-03-27
Abstract: 1507893 Presser foot R B HOWELL 27 March 1975 [28 March 1974] 12973/75 Heading D1G A presser foot 12 comprises a relatively thick and stiff heel portion 18 a relatively thick and stiff toe portion 30 joined by a relatively thin flexible portion 22 and a presser surface (24, Fig. 2 not shown) which when the foot is in the machine clear of the work slopes downwards from heel to toe, the intermediate portion flexing, when the surface abuts the work to press flatly on the work. The intermediate portion can also flex to allow the passage of a thicker portion of the work. The portion 22 comprises two arms with a space therebetween. Grooves 34, 36 beneath the toe portion, separated by a divider 44 accommodate and guide the fastener string 48 of a sliding clasp fastener being sewn to material 52. The heel 18 includes a transverse slideway 14 frictionally secured in the mounting shank 10 to allow transverse adjustment of the foot, which may be a plastics injection moulding. In another embodiment (Figs. 7-9 not shown) the presser foot (60) is split longitudinally to provide three cantilever portions (70, 72, 74) of reduced thickness to provide the flexible portion, the toe being in three parts, the part at the end of the centre portion providing guide grooves (80, 82) separated by a divider (84).
Patent GB-1066020-A (GB)
Title: Method and apparatus for laying elongate flexible means on a submerged surface
IPC: F16L1/225
Filed: 1966-03-24
Abstract: 1,066,020. Laying pipe-lines under water; valves. BROWN & ROOT Inc. March 24. 1966, No. 13034/66. Headings F2P and F2V.  Apparatus for laying elongate, flexible means such as pipe-lines assembled on a barge 12 comprises shoes 14 mounted on vertically adjustable, swivel pedestals 16 carrying horizontally and vertically mounted guide rollers 17, 18, and parallel pontoons 20 pivotally and rotatably connected to a ramp 10 and connected by hollow U-shapad cross-members 24 alternate ones of which carry oppositely inclined rollers (25), Fig. 7 (not shown). The pontoons are divided by bulkheads into sealed compartments 23, each of which is independently and selectively connected to a source of gas pressure and has a seacock 29 also connected to a source of gas pressure. The pipe-line is slid axially down the ramp formed by the pontoons and the buoyancy of the pontoons is regulated by admitting gas to the compartments to exhaust water therefrom or by opening the sea-cocks to allow water to enter the compartments. The sea-cocks 29, Fig. 6 (not shown), each comprise a piston (48) attached to a rod (52) which, as the piston is moved by compressed air admitted through pipe (31), pushes a ball (56) off a seat (60) and against the pressure of a spring (62) to allow water to enter a port (44) and pass to a port (46).
Patent GB-1141204-A (GB)
Title: Photographic exposure control apparatus
Inventor: NEALE DENIS MANKTELOW
IPC: G01J1/44
Filed: 1966-03-24
Abstract: 1,141,204. Relay circuits. ILFORD Ltd. 23 March, 1967 [24 March, 1966], No. 13058/66. Heading H3P. [Also in Division G2] A timing relay (Fig. 1) comprises a voltage source across which is connected in series a first fixed resistor R 1 , a second fixed resistor R 2 , and a variable third resistor R 3 , a capacitor C T  being connected to the junction between R 1  and R 2  and being charged through a fourth resistor R T  from the voltage developed across R 2 ; when the voltage developed across capacitor C T  and resistor R 1  reaches a predetermined value V T , a discharge tube V 1  is triggered, which operates the relay. The device is of use in controlling photographic exposures, particularly in that linear adjustment of a variable resistor provides logarithmic adjustment of the timed interval. Fig. 4 shows a photometer circuit, a photoconductive cell R c  being placed in the light path of a photographic printer. Resistor R p  is adjusted until the peak voltage developed across cell R c  is equal to the triggering voltage of tube V 1 , and then the resistor R p  is used as the variable resistor R 3  in Fig. I. Fig. 7 (not shown) is a combined photometer and timing relay circuit, according to whether the coupled switches (SW1a, SW1b, SW1c) are set in the " P " (photometer) or " T " (timing) position. Initially, the circuit is set in the " P " position, and the photo-cell circuit balanced so that the discharge tube (V 2 ) conducts, and then extinguishes, at a low frequency, e.g. once or twice a second, this indicating the balanced condition. The circuit is then switched over to the " T " position, the photo-cell removed from the light path and replaced by a light-sensitive sheet, and the timed exposure initiated.